//
// Copyright (c) 2010 Luís Reis
//
// MIT License
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.Text;
using Pine.Lexer;

namespace Pine.SourceParser.Tree
{
	public class FunctionArgument : Node {
		public bool isConst;
		public object key;
		public Expression defaultValue;
		public bool isVarArgs;
		public string name;
		
		public override string ToString ()
		{
			StringBuilder builder = new StringBuilder();
			builder.Append(isConst ? "const " : "var ");
			if (!isVarArgs) {
				builder.Append(key);
				builder.Append(" : ");
			}
			builder.Append(name);
			if (isVarArgs) {
				builder.Append("...");	
			} else if (defaultValue != null) {
				builder.Append(" = ");
				builder.Append(defaultValue.ToString());
			}
			return builder.ToString();
		}
	}
	
	public class Function : Constant
	{
		public Statement stmt;
		public IList<FunctionArgument> arguments = new List<FunctionArgument>();
		
		public override string ToString ()
		{
			StringBuilder builder = new StringBuilder();
			builder.Append("function (");
			
			bool first = true;;
			foreach (FunctionArgument arg in arguments) {
				if (first) first = false;
				else builder.Append(", ");
				builder.Append(arg.ToString());	
			}
			
			builder.Append(")");
			builder.Append(stmt.ToString());
			return builder.ToString();
		}
	}
}

